Commit instant loader when the instant page navigates away from instant URL.

chrome/browser/instant/instant_client.cc

Index: chrome/browser/instant/instant_client.cc
diff --git a/chrome/browser/instant/instant_client.cc b/chrome/browser/instant/instant_client.cc
index 8aa53fb6ca2b30ada42e2926c4dca76b2afb49e2..50d78523d2a7b9b2e787deef2094fd8918063ce5 100644
--- a/chrome/browser/instant/instant_client.cc
+++ b/chrome/browser/instant/instant_client.cc
@@ -101,6 +101,17 @@ void InstantClient::RenderViewGone(base::TerminationStatus status) {
   delegate_->RenderViewGone();
 }
 
+void InstantClient::DidCommitProvisionalLoadForFrame(
+    int64 frame_id,
+    bool is_main_frame,
+    const GURL& url,
+    content::PageTransition transition_type,
+    content::RenderViewHost* render_view_host) {
+  if (!is_main_frame)
+    return;
+  delegate_->AboutToNavigateMainFrame(url);
+}
+
 void InstantClient::SetSuggestions(
     int page_id,
     const std::vector<InstantSuggestion>& suggestions) {